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ongterm Skeletal Stability of Mandibular Distraction Osteogenesis

Completed
Conditions
evaluatie stabiliteit van chirurgische interventie
mandibular hypoplasia
overbite/overjet
10005959
10005944
Registration Number
NL-OMON39925
Lead Sponsor
Vrije Universiteit Medisch Centrum
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
Completed
Sex
Not specified
Target Recruitment
55
Inclusion Criteria

Mandibular hypoplasia treated with mandibular distraction osteogenesis

Exclusion Criteria

Follow-uptime shorter <5 years
Other orthognatic surgery (genioplasty, sagittal split osteotomy)

Study & Design

Study Type
Observational invasive
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
<p>Main study parameters<br /><br>Cephalometric analysis will be carried out on the pre-operative,<br /><br>post-distraction and these radiographs. The following measurements will be<br /><br>made:<br /><br>* SNB-angle: sella/nasion-mandibular point B<br /><br>* SN-MP: sella/nasion- mandibular plane<br /><br>* Point B in respect to x and y-axis<br /><br>* x-axis= SN, y-axis: perpendicular line to x-axis<br /><br>Primary parameter is to establish horizontal mandibular relapse. This is<br /><br>defined as change of position of point B in a horizontal (mandibular) plane.</p><br>
Secondary Outcome Measures
NameTimeMethod
<p>N/A</p><br>
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